With a day left in December, Musk now says that it could come out tomorrow if Tesla can just fix a bug. Unfortunately, Musk also confirmed that its software update v8.1 will be pushed to “late January”.

The update will only be for vehicles delivered since October 2016 with the ‘Enhanced Autopilot’ option.

Musk said on Twitter today that they found a bug “when booting from a subzero cold-soak”:

Resolving an Autopilot HW2 bug that shows up when booting from a subzero cold-soak. If that fix works, software will start uploading tmrw.

That’s all good news for new Tesla owners with Autopilot 2.0 and P100D owners, but all other owners will have to wait a little longer to get the anticipated v8.1 update.

Following recent comments made by Tesla CEO Elon Musk about the timing of the upcoming version v8.1 software update for Tesla vehicles, some (including ourselves) mistakenly thought that it would incorporate the updated features of the new ‘Enhanced Autopilot’.

The confusion originated from an owner asking Musk about both v8.1 and the missing Autopilot features at the same time and Musk responding:

@edwardsanchez about three weeks and it will get rolled out incrementally in monthly releases

According to the release notes of v8.0, it will also feature an update to the Autopilot new off-ramp feature:

“When at a highway exit, it will favor marked lane lines in the direction of vehicle indicator (8.0)* or in the direction suggested by the navigation system if active (8.1). This feature will be available initially in the US and later in all countries where lane markings are open for highway exits.”

Several more improvements are also expected and we will keep an eye out for more information.